A freeze resistant ink jet ink comprising polyethylene glycol and diethylene glycol

摘要

A pigment ink for ink-jet recording which is excellent in freezing resistance and fixability includes a pigment, an aqueous resin emulsion, polyethylene glycol and diethylene glycol. This ink satisfies the following formulae (1), (2) and (3) : $\mathop{\mathrm{image}} \[ \mathrm{A}15 \]$$\mathop{\mathrm{image}} \[ \mathrm{A}+\mathrm{B}10 \]$$\mathop{\mathrm{image}} \[ 30\le \mathrm{A}\times \mathrm{\alpha }+\mathrm{B}\le 64 \]$wherein: A is the content of polyethylene glycol (%); B is the content of diethylene glycol (%); and α is the molecular weight ratio of polyethylene glycol to diethylene glycol.